Welltower OP LLC operates as a real estate investment trust (REIT) focused on the senior housing and healthcare sectors. The company invests in properties such as senior living communities, medical office buildings, and wellness housing, working with various operating partners to enhance resident experiences and employee satisfaction. Welltower's business model emphasizes long-term growth through strategic property management and continuous improvement in operations. The company primarily serves the senior population and healthcare markets across various geographic regions.